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Gosund SP112

  1. Flashing
  2. GPIO Pinout
  3. Basic Configuration

Flashing

The device can be flashed using tuya-convert. Fresh out of the factory it will be in autoconfig mode. When plugged in for the first time tuya-convert will pick it up directly.

If that doesn’t work out for you, disassembly and wired flashing is explained in this (German) video.

GPIO Pinout

Pin Function
GPIO0 LED red
GPIO2 LED blue (Inverted: true)
GPIO4 HLWBL CF1 Pin
GPIO5 BL0937 CF Pin
GPIO12 HLWBL SEL Pin (Inverted: true)
GPIO13 Relay USB
GPIO14 Relay mains (Inverted: true)
A0 Button

Basic Configuration

esphome:
  platform: ESP8266
  arduino_version: 2.5.1
  board: esp01_1m

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

# Reduce log level as otherwise logs would be flooded with analog sensor readings
logger:
  logs:
    sensor: INFO
    adc: INFO

status_led:
  pin:
    number: GPIO02
    inverted: true

output:
- platform: gpio
  id: led1
  pin:
    number: GPIO00
    inverted: true

switch:
- platform: gpio
  name: "Relay Mains"
  id: switch1
  pin: GPIO14
  on_turn_on:
    - output.turn_on: led1
  on_turn_off:
    - output.turn_off: led1
- platform: gpio
  name: "Replay USB"
  id: switchusb
  pin:
    number: GPIO13
    inverted:  true

binary_sensor:
- platform: template
  id: button1
  # read analog sensor and convert it's value to binary state
  lambda: return (id(button_adc).state < .5);
  on_click:
  # short button press toggles mains
  - min_length: 10ms
    max_length: 250ms
    then:
    - switch.toggle: switch1
  # long button press toggles USB
  - min_length: 250ms
    max_length: 1000ms
    then:
    - switch.toggle: switchusb

sensor:
- platform: adc
  id: button_adc
  pin: A0
  update_interval: .1s
- platform: hlw8012
  sel_pin:
    number: GPIO12
    inverted: True
  cf_pin: GPIO05
  cf1_pin: GPIO04
  current_resistor: 0.00221
  voltage_divider: 871
  change_mode_every: 8
  update_interval: 10s
  current:
    id: amperage
    name: Amperage
  voltage:
    id: voltage
    name: Voltage
  power:
    id: wattage
    name: Wattage